Unit 5A REVIEW over Laws of Exponents and Scientific Notation

Anything raised to a power of zero is always: 

• 0
• 1
• itself
• negative

Tags

CCSS.8.EE.A.1

According to exponent rules, when we multiply powers we _______ the exponents.

• add
• subtract
• multiply
• divide

Tags

CCSS.8.EE.A.1

What is 0.000058 written in scientific notation?

• 5.8 x 10^-6

• 5.8 x 10^-5

• 5.8 x 10⁵

• 5.8 x 10⁶

(2⁸)²

• 2¹⁶
• 2¹⁰
• 2⁶
• 2⁴

Tags

CCSS.8.EE.A.1

What do you predict will happen?

When we raise a power to a power we _______ the exponents.

For example (2³)⁴

• add

• subtract

• multiply

• divide

Tags

CCSS.8.EE.A.1

What is 6.92 x 10^-3 written in standard form? A. B. C. D.

• 0.000692

• 0.00692

• 0.0692

• 0.692

Tags

CCSS.8.EE.A.3

(2)³⋅(2)⁶

• (2)⁹

• (2)¹⁸

• (2)⁻³

• (2)

Tags

CCSS.8.EE.A.1

Simplify

8⁷ ⁄ 8²

Hint: Write out in FACTORED form first!!

• 8⁵

• 8⁹

• 8¹⁴

• 1⁵

Tags

CCSS.8.EE.A.1

Which is the best example of a number written in scientific notation?

• .5 x 10⁵

• .1254

• 5.367 x 10^-3

• 12.5 x 10²

Tags

CCSS.8.EE.A.3

A virus is viewed under a microscope. Its diameter is 0.0000002 meter. How would this length be expressed in scientific notation? A B. C. D.

• 2 x 10^-7 m

• 2 x 10^-6 m

• 2 x 10⁶ m

• 2 x 10⁷ m

Tags

CCSS.8.EE.A.3